Spirostanone
[化] 螺甾烷酮
🗣️ 情景例句
You should take the number 1 train to Van Cortlandt Park.
搭一路车到Van Cortlandt公园下车。
When the storm broke, I was doing the ironing.
当火起来的时候，我在烫衣服。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：